U.S. Robots and Mechanical Men, Inc. is a fictional 21st century manufacturer of robots that appears in Isaac Asimov's Robot series of novels and short stories.U.S. Robots was founded in 1982 by Lawrence Robertson. Dr. Susan Calvin was the first, and for many years, the only robopsychologist at U.S. Robots, and is the main character in many of Asimov's short stories, usually dealing with robot problems in the laboratory.